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Opening your system
Caution! Before you proceed, make sure that you have turned off your system and all peripherals connected to it. Read the “Preinstallation instructions” on page 33.
Warning! DO NOT attempt the procedures in the following sections unless you are confident of your capability to perform them. Otherwise, ask a service technician for assistance.
Removing the system cover
You need to open your system before you can install additional components.
1Turn off the power to the system unit and unplug all cables.
2Place your system unit on a flat, steady surface.
3Turn the thumbscrews counterclockwise to release the cover (1).
Hold the cover with both hands and gently pull back the cover to detach it from the housing (2).
